package thread;

public class SyncDemo4 {
    public static void main(String[] args) {
        Boo boo = new Boo();
        Thread t1 = new Thread(){
            @Override
            public void run() {
                boo.methodA();
            }
        };
        Thread t2 = new Thread(){
            @Override
            public void run() {
                boo.methodB();
            }
        };
        t1.start();
        t2.start();
    }
}
class Boo{
    public synchronized void methodA(){
        try {
            Thread t = Thread.currentThread();
            System.out.println(t.getName()+":正在执行A方法。。。");
            Thread.sleep(2000);
            System.out.println(t.getName()+":A方法执行完毕！");
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }
    public  void methodB(){
        synchronized ("this"){
            try {
                Thread t = Thread.currentThread();
                System.out.println(t.getName()+":正在执行B方法。。。");
                Thread.sleep(2000);
                System.out.println(t.getName()+":B方法执行完毕！");
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }

    }
}